Dispensing apparatus for oils and the like.



1. DAVIS.

DISPENSING APPARATUS FUR OILS AND'T'HE LIKE. 'Patented Apr. 29,1919.

3 SHEETS- suur 2.

APPLICATION FILED MAR. 6.1 9l7- ATTORNEYS.

1. B. DAVIS.

DISPENSING APPARATUS F'OR OILS ANCI THE LIKE.

APPLICATION FILED MAR.6.'19|?. v Patented Apr;y 29, 1919.

y a SHEETS-sneer a.

A TTORNE YS.

UNITED sTATEs" PATENT oEEIoE.

JOHN B. DAVIS, OF PRINGFIELD, MASSACHUSETTS, ASSIGNOB, `'150 GILBERT t BAKKER MANUFACTURING coMrANN, or -wEsT smarter/mui, MASSACHUsETTS, A confo- MTIQN or MASSACHUSETTS, l

DISPENSING' APJEARATUS EUR OILS vAIN' D THE Specincation of Letters Patent.

Patented Apr. 2e, 1919.

Applicationjled `March 6, 1917. erial No. 152,642.

To altwhogm tmay canern:

Beit :known :thatL JOHN DAVIS, a ci't1 zen of the United ,tutes of America, residing .at Springfield, in. the County of Haierden and State of lllassachusetts, have 1nvented certain new and useful Improvements in Dispensing Apparatus for Oils and thelike, of which the following is a speer eation. U

This invention rrelates to Adispensing apparatus or pumps. The complete apparatus 1s designed particularly for outdoor use and consists Of an improved filling station for automobiles, as an example. 'Ehe-invention, however, embodies newand improvedstlucf ture` in dispeIiSiDeg` pumps generally. The invention, therefore, lconsists 1 n the complete pparatusabroedly comprising an 1mproved ,fllingstatoii and such combinetipnsI andsub-combinations of the.4 .structure as the same may be lld in thedispensing pump art, all as will be more particularly Pointed out; andclea-rly defined m the ap- Pendedfelfms- `Itis fnowtheeustom ordealers 1n gaso- 1611@ and oils t0 `pleur, Vdispensing pumps at the curb or `other outdoor 4positions oo n- Vnientjfor thelbuyer Of the Oil. It iS 00m- 1110.11 .practice .among pumpV manufacturers .to buildsl ooveror protecting caslngfor outdoor use. of. such` pumps as-werepreviously used -ndQOliS .without resinas. )So Afar .es .I am were the ruines heretofore use@ 011tdeors are .Substantial ith@ .Same in. construe timi- --aud .Operation-.es the ruines preme-esili ,used .minors except forth@.ariditlonfsf the casing. This prnor 1, practice resultsl .ln. .eX- posing. the larger portion- Qfi the. operating parts ff-,the pumpyvhenever thesameisin use. 'I Fhe'casing insuchpractIce is designed to: thoroughly Protect the Pump only `when the pumpfis notaiil use-which as. willem-S only ar small partof each gday. y V';I`h1s.ob]e( tionu's.` caused by the fact that the pumpis not designed for use with the casing,` and-the latter must `nec-essalli' ,take the 01111 de- .terminal bu the oldstyle 0f Pumnwhih fig- -grgated emangerwit 0f pumpv and easing is a makeshift `.atbrestI .To illustrate the :i rouaarraueement, refrenis to lg'atemN0-gLiospt3, of August-,2a 1.914. y

rIlhe .obj ections to the former praptiee. in*

`crease the size ofthe trumps. @Greaseried on as desired when vement enough for apone gallon pump will ,Wholly unsuitable and inconvenient as Well as extremely .unsightly when .adopted for a five gallon pump. l

The object ofthis invention is to provide a dispensing apparatus more particularly for outdoor use in which the pump yis specially designed for combined use with and to be protected by an improved casing, such apparatus being characterized by the location" of the operating parts of the pump side by side with the pump cylinder and closely adj aeent thereto so that the cylinder and associated mechanism may be effectively protected and covered at all times.

'A second object of the invention is to combine a pump and casing, the combina.- tion `being characterized by the location of the greater portion of the pump mechanism within the. casing .for permanent .Proteetons theprovision ofmeans to most conveniently operate the pump while effectively inclosed and means on the pump extending outside of the easing and coperatin with parts on .the casing to indicatef at all tlmes the fpiston `A fourth object'of the invention is toprovide an impro-ved dispe'nsingpump ,of the recaproeating"-v piston .type panticularly designed :for outdoor use with a suitablecover for the. operating parts of the' pump.

A object. of` the invention is to prol vide an nnprovedvcover casing for v an out,- door pump, said casing having parts thereon lto cooperate with means on thepump whereby theoperation of the pump may .be oar covered "and pro.- tected.

eenexed slams i i v 't'lierfie objects in i view, the Ainvention A sixth `object is to provide lan improved pumpfor outdoor use which maybe made large sizes without unduly increasing the l will be described by reference to one-preferred and illustrative example.

Flg. 2 is a front elevational View thereof;

Fig. 3 is a rear elevational view' of' the indicating scale shown in Fig. 2;

Fig. 4v is an enlarged cross sectional view taken on the line 4 4 of Fig. 3;

Fig. i is an enlarged vertical section of the indicating scale; A v

Fig.5 is a rear-elevational view of the pump with the casing members broken away to reveal the mechanism therein;

Fig. 6 is an elevational 'View taken from the left of Fig. 5, the casing members being broken away.;

Figs. 7, 8, and 9 are cross sectional views taken on the lines 7 7, 8 8, and 9 9, respectively, ofFig. 5;

Fig. 10 is a cross sectional view, taken on the lin-e 10-10 of Fig. 6, of the pump cylinder and piston;

Fig. 11 is a detail sectional view showing the connection of the operating handle tofthe driving mechanism; and

Fig. 12 is a sectional elevation taken on the line 12 `12 of Fig. 1. y

Referring to these drawings in detail 1and particularly to Figs. 5 and 6, a 'base casting 15 supports a pump cylinder 16 and formed in the blas'evcasting is -a pump inlet 17 to which liquid'is supplied in the usual manner through a pipe 18. On the top' of cylinder 16 is a lcap member 19 which is held to the base casting with the cylinder 16 clamped therebetween by a plurality of bolts 20. The casting 15 has a circular flanged base 21 and cap 19 a circular to-p 22. Two semi-cylindrical casings 23 it together in abutting relation over the members .21 and and completely inclose vth'eds'pace there between, whereby' the pump cylinder aswell as other mechanism to bedescribed Vis concealed land protected against theweather and accidentsgenerally.

' The casmgmembers 23 are hinged together on one side by two or moreULshaped links and connects a air of sockets'25 secured to the interior'lof .t le casings 23 adjacent their plane of separation. The casin'gs are `conrior to'as- Substanets 2 5, other sockets 25 are secured'to the interior of casings 23'; The sockets 25 on one vcasing are arranged 'to'come into vertical alinement with the sockets 25" on the otherV casing when the easings have been assembled and brought into the position shown in the drawings.' A lug 23 (Figs-2 and 6) von the base 21 is adapted to enter a recess'in vone casing 23`t'ofix the circum- Figure. 1 is. a side elevationalfview ofthe.

erential position of the casings relative to the members 21 and b22. A rod 24 passes 211i to permit convenient rem-oval oi the lat ter when desired. The casings 23 are thus held in abutting relation to inclose the space between members 21 and 22 and are locked to the latter by the rod 24.

Secured to the upper face of member-22; asshown lin Figs. 5', 6, and 9-i`s a cylindrical housing 26 which is closed at the' top save :tor a centrally arranged elliptical opening. Housin 26 has op-positely located cover plates 2 which rest in a l'anged'se'at in the housing (Figs. 5 and 8) and may be removably secured thereto in any suitable manner. For example, lugs 28 (Figs. 5 and 8) may be arranged to hook over the lower iange of the housing, and a lock (indicated conventionally by reference 29) is fastened tocover 27 and may be arranged to have its bolt engage in the upper fiange as indicated, so that the cover ma be locked in place. Secured to the top o housin v26 (Figs. 1 and'2) is an upstanding hol ow elliptical casing 30 and' upon the topf the latter a cap stand-ard 31 which maysupport ,ano-rilamental dome32.v Casing 30 is held to the standard '31- and housing 26 by the screws shown in Fig. 1.

Other means are provided to hold the-casmg 30 and standard 31 to the housing which means are arranged to interiorly 'connect the parts in such a manner that they cannot be removed except by authorized persons. Referring to Fig. 12, two or more rods 31 are pivoted to the interior walls of standard 31"and depend` vertically or: substantially so within casing 30. The lower ends of ro\ls 31 are adaptedt to it into; forked lugs 26 formed on the interior of housing 26 (-see Fig. 7) and thumb nuts 30, threadedon the lower endsov rods 31,'elamp the casing30 between the housing 26 and' standard v31. 1t, will thus' be seen that 'the casing and standard cannot be 'removed until covers 27 'have' been unlocked and removed; The

thumb nuts 30"'1na'y be readily removedV when covers 27V are removed and rods 31 may bel then swungout of the forked' lugs 26'.` 'to release the connected parts. The

screws-shown in Fig. may be omitted if desired.'t n Y The pump proper will be described b rieiy in general terms except for its operating lmeans to which the invention, is more particularly directed.l Liquidv is drawnv in through pipe 18 past the suction operated valve shown in Fig. 5 into cylinder 16 by' the suction stroke of the pump. The liquid thusl drawn into the pump can pass into leither of two oppositely disposed outlets ifo imam

Whichareformed in 'cap 19' and connected by siiitaflle "passages directly with the pump cylinder, one Iopening upwardly through plate'22 and theother downwardly into the intei'ionof `(,'asings 23. `To the former outletfan 'air domeV 32 (Fig. 5f) is secured which is'disposed within lhousing 26 and functions iii-'tlerusual-rnanner.- From `the other outleta 'pipe B3 extends downwardly` land is connected by suitable =fittings, as shown in Figs. 5 and g6, to the lower end of e interet, the :latter and'l'pipe ,33 being arranged in Uffo'rin. From vthe top of filter 34 a 4discharge 'pipe 35 extends 'upwardly through pleite 22and housing 26 andtermi'nates adjacent standard 31 with a suitable `tting. The usual blow oi' pipe for the filter is findicatedat 34 and this pipeitermina'tes abovethe upper faceof plate 22 and is provided with a valve 35 .(Figs. 5 and 8) through which the filter may discharge Jfor cleaning in the `usual manner.

The piston of the pump, however, is of novel Tand advantageous construction. It comprisesl a circular disk 37, secured as shown in Fi 6to a piston rod 38, and hav ing a plura ityr of openings 39 extending therethrough. Upon the upper face of disk 37 is 'acircular disk 40 of suitable material, such as leather, for example, which is slightly largerin diameter thancylinder 16. Restingupondisk 4() isa small disk 41 (Fig. 10) which is formed with a plurality'of radially arranged spring ingers41. Disks 40 and 41 are. centered on the member 37 by the piiston rod 38 andare held against the meinrr 37 by a weight 42 which loosel-y lits the piston rod, asshown in Fig.4 The lower face of weight `42 is charnfered, as shown in Fig. 6, to permit upward movement of fin rs 41. On the downstroke of piston ro i 38, the disk and ingers4l yyield to permit `"liquid to pass throughopenings 39, ut on the 11p-stroke disk40 is heldto Lme1nber 'B7-by spring fingers 41 and the pressure of the liquid thereabova `The structure described is characterized infthat an eilieierit piston isprlovidedwhich is of simple construction and `adapted for low cost o'ffmanufacture. For example, the member 37 nay be simply aroughcasting upon which no inishing operations are necessary save-for=the drilled hole for piston rod 38. The'disks 40 and 41 may conveniently be formed by stamping and the weight 42 may consist simply of a rough casting.

Theuneans for actua-ting the piston will now be described. 'Piston rod 38fextends upwardly through a suitable stuiiing box in Iplatew22and securedto. the upper end ofrthe yrod in T-'form is a cross head v45. Fixed to vthe extremities-of the-latter'are two-rods' L46,hereinafter called they 'operati rodS, whicharearranged Aone on feach si ewofthejpistonrod 'and extend Ydownwardly through bearing bushings rin plate 22 to a positron adjacent fthe lower end of the piston rod, as shown in Fig. 6. The operatingrods are thus arranged in parallel and `oiferlapping relation with `the piston nod. A pair of rods 47, hereinafter called guide rods, are arranged :in parallel reim with the operi-ating rods and #as shownin Fig. 9, are Vdisposed in the same vertical plane as the `operating .rods and :piston rod. These rods 47 dit into sockets` in the base 2l `and extend `upwardly through and terminate 'flush 'with the. 4top of plate 22, each yrod ybein lheld in position by' a lpin 48 applied just elow `plate 22, as shown in Figs. and 6. Fixed to the end of each operating rod is aguide block 49 which, as best shown in Fig. 9, encircles the adjacent guide rod and has a slidable lengagement therewith. The operating rods thus have bearings in `the 'plate 22 and on the guide rods. In order toprovide bearings vof ade quate' length in4 the relatively thin plate 22 for the'rods 46, relatively long bushings 50 are provided whichV are heldto theplate by nuts. 51 coperating withthe flanges show-n on the bushings in Figs. 5and 6.

Rotatably mounted inthe base casting 15 andibelow the inlet passage 17 is a-horizontal shaft 52 which extends entirelyxthrough the pedestal and'has Xed on each end :a sprocket 53. Verticallyfabove each of the latter is an idler sprocket 54 :rotatable ontl stud 155 kfixed in the cap 19. A sprocket chain *56, adjustable for length `by a turnbuckle 57 connects one pair of sprocketsx53 and 54, and a `similar chain connects the other sprockets 53 and 54, andthe inner travel of-each-chain is in parallel relation witliandA closely adjacent to Van operating rod 46. Each. guide block 49 haetwo spaced projections 58 which, as shown `in Fig. r5, passrthrough,` the openings between adjacent lil-r'iksofy chain 56 'and are held to .the latter by pins 59. It will thusbe :seen that, sprockets 5 3 are turned in a clockwise; direction (as=viewedin Fig.- 5) the chainsf5`6 will lift operatingrods 46and the vlatter, acting with lequal fforce on opposite sides of :the crosshead 45, will lift thepistonfrod 38 vertically. The'return or downstroke` of piston'rod 38 is eii'ected by the weight oft-the partseonnected thereto and the Weightof described member 42 associatedtherewith. The means for operating the shaft 52 will nowbe described with particularreference to -Figsnnd 6. A- relatively .large sprocket 61 ifs fixedmshaft 52 near one endI thereof and is connected by .a chain 62 to a lrelatively small-sprocket 63 which ismounted totone side of sprocket 54 but in thesame horizontal .plane-therewith. Thesprocket, 63- has at diametrically opposite points 'two putje@ tions 64 which extend axially outwardlfrom the-face of thesprocket rand are adapted to it injmating recesses inanoperating handle 65, as shown in Fig. 6. Handl-'e65has been purposely omitted from Fig.` 5.

.Thedetailof the mounting offhandle and sprocket 63 is clearl shownv in Fig. 11. The sprocket 63 isrotata le on a stud 66 and is held fromaxialv movement thereon by-a set screw 67 which loosely rides i'n a= circumferential groove 68 in the stud. rlhe llatter hasv integrally. formed thereon in eccentric relationva.cylindricalpart 69 whichgis fixed in -cap'19'by a Ls'etscrew 7-0. By loosening:

the latter and: :turning stud 66,y the axis off the sprocket 63may be raised or-lowered to alter the: tension in ychain 62,- as desired. HandleV 65, Vas shown in Fig. 6, has a `part which passes loosely through an opening in casing 23 to engagethe' projections 64 and` loosely mounted in this part is a rod 71 which is adapted, as shown in Fig.v 11, to screw into the end of stud 66. Upon rod 71 are two spaced'circumferential flanges 72 which loosely fit the bore of handle 65 and a screw 73 is threaded intoI the latter and extends between the flanges and in* the path thereof. kA spring Mecoiled around rod 7l acts between one'flange 72 and a shoulder on thezinterior of the handle to hold the latter inengagement with projections 64,- Thus by turning handle 65, the sprocket 63 may be turned to vlift. the pump piston, but, 'instead of turning the handle 1n a reverse' direction to lower the piston, the preferred operation is to pull the handle axially outward'to disconnect it from projections 64 whereby the down-stroke will be eil'ected bythe weight of the parts, as described. In this return or lowering operation of the pump piston, the handle does not, therefore, needto rotate. The engagement of screw 73 with the outermost lefthand flange 72, as shown in Fig. 1.1, limits the' outward movement of the handle. Ther-'removal fof' the latteremay bemade when desiredby turning` the rod 71 by the exposed ortionthereof. v

- In or 'erithats the operator fmay cause thel deliveryv otpred-etermined fquantities from the pump, :measuring stops" are pro# vided tol limit the movement of the piston rod; vThese measuringfsto'ps will now be described with particular` reference to Figs. 6, 8, and'9. A rod 75 .ismounted vertically in spacedparallel and adjacent relation with oneE of the operating rods 46 and, asshown in Fig. 9, is arrangedat right angles to the guide block 49- and on the opposite side of rod 46 from the chain56. Rod 75.. is supportedfatts lower end in the base casting 15', 'andj its upper'end. passes through lplate 22, a collar 7-6 being provided on the rod to 4engage thelowerface ofthe late. Fixed to the upper face of the latter- F ig.j8)fiS arcuate dial plate 77 having 'graduations thereon. v

'f In the embodiment illustrated these gradnations indicate one, three, and five gallonquantities. A ointer 78 is xed to the, upper end of rod 175 and may be turned by the handle shown whereby the rod may, be moved to various angular positions to effect the delivery of measured quantities as will appear. 'Fixed in suitably spaced relation on rodv 75 and at right angles t-o one 4another (Fig. 9) are-blocks 79 inea-ch of Which a bolt is threaded from below. A suitable lock nut is lprovided in each lboltas shown ini Fig. 6 to engage. the upper faceof its block 7 9;. v Theheads of bolts 80 are adapted, when suitably turned, as described, to lievin. the path ef a lugSl (Fig. 9) on one of the guide bloc-ks 49, andthereby limit the upward travel of the operating rods. The lower bolt 80 is adapted to arrest the operating rods when one gallon has been delivered from the pum-p .and the upper bolt when three gallo-ns have been delivered. Above the upper block 79 andv adjustably fixed to rod 75 is a circular disk 83 4which is adapted to engage lug 81 whatever the angular position of rod 75, provided only that neither bolt 80 is disposed in the path of the lug. Disk 83 arrests the operating rods when the full capacity of the pump, say, for example, live gallons, has been delivered. Thus, the operator, by theuse of pointer 78 and dial 7 7 may conveniently set the stops described to eifect the delivery of measured quantities from the pump.

The measuring stops described are not, however, visible to the customer and are in- .tended primarily for convenience in operating the pump, as other means, visible from the exterior of the pump, are provided to indicate to the customer the quantities dispensed. The visible indicating means will now be described with reference to Figs. 2 to 7, inclusive. The pistonrod 38, operating rodsl 46, and cross head 45 are, as shown in Fig.` 7, freely' movable vertically within the'elliptical :casing 30. Fixed to one of the operating rods is a rod 85 which is bent, as shown in` Fig; 6, to extendl outwardly through a vertical slot 86 in casing 30. On the'end of rod -85' is a forked pointer 87 (Fig-7) which loosely-nts over a vplate 88, 115 suitably secu-redtowthe casing. The outer face of plate 88 is visible t0 the customer and the rear face to the operator since the latter, when manipulating handle 65, faces the left hand side of the pump, as viewed 120 in Fig. 7, and thus is in a position to observe the rear' :tace of plate 88. The latter is not directly graduated, but the graduations are applied to both sides of the plate by means of 'buttons `which are adjustable 125 in the plate, as will now be described.-v Referring more particularly to Figs. 3 and 4, plate 88 has ai series of vertically spaced circular openings 89, the centers of which are spaced one from another a distance'equal :130

approximately to .the desired distance between the graduations For example, six openings are provided in the embodiment illustrated, the centers cf `it'iiith indicate tP- proximately the vertical position necessary for the points? 8.7 to ,assume to cause the delivery of one, two, three, -f`o ur,- and live gallon-quantities- Th desired. marks and staduaticns. are applied to circular disks 90, as shown in Figs.' 2 and .3. For each opening 8,9., two disks are scanne .on feachiside 0f the plate 87, as shown in Fig. .4. One but t0n .ci tat-h pair, that 011 the ,rear fate 0f plate 87, basa nut soldered thereto which passes into theopening 89. A screw 92 passing loosely through the other button of the .pairiis threaded into nut 91 so that the disks may be drawn Vtogethcr and clamped to the plate. lt is to be IlQtd that nut 91 is relatively .Small in `cefcpwfis,011 with opening 89 and that may, therefore, 4be moved above or below the center of the opening so that there is a latitude of adj usilllnt for the buttons. Thus, when the pump is tested, the

buttons may bashifted up Or down S0 that they exactly aline with painter 87 when the respective quantities. indicated' by. the marks on .the ybuttons have been deliveredfromtlis pump l-tis als@ tc henoted, that the inner .fates 0f betten@ r.90ers contare, and the. lult.- tons .are `meierably .made cf spring metal This is important since it permits screw 92 to be turnedthrough a considerable angle even after buttons 90 are tightly clamped to the plate. -The practical utility of ythis construction is to permit one of the two transverse openings 93 in each screw 92 to be moved into vertical alinement so that a wire or small rod 94 may be passed through vertically all the screws, as shown in Fig. 3. The upper and lower ends of Wire 94 may then be passed rearwardly through openings in the top and bottom of plate 88 and be bent over and sealed as clearly shown in Fig. 2. Thus, all the adjustable disks on plate 88 may be conveniently sealed in their adjusted positions by a single means.

A further indicating device is provided which consists of a total register 95 (Figs. 5, 6, and 9). This register is of a type too well known in the art to need detailed description, and it will suffice to say that it is of the cyclometer type and indicates cumulatively the quantities dispensed from the ump. Register 95 is suitably secured to the ascribed plate 22 and may be driven by a chain 96 from a sprocket on stud 55 which sprocket is located directly behind the sprocket 54, shown in Fig. 45.

The operation of the dispensing apparatus will now be described. Usually, when o erating the pump at least one of doors 2 is removed so that the measuring stops may be adjusted. The doors need not, however, be opened when the full capacity of the `turns the latter to elevate the piston in the described manner. 0n continued movement, one of the stops 8.0 on? thejdisk 8 3 comes into playto arrest the .upstroke lof `the piston, or

:the` operator may gage the stroke ofthe pump'simply by watching the pointer 87. As soon as the upstroke of the pmnp has been edected, the operator preferably pulls handle 65 axially outward to disconnect it from projections 64, thereby allowing the -piston .to descend rapidly by gravity. As`

soon as :handle 65 is'released, it is immediately forced back into en agement with sprocket 63 by the spring 4 and, as the Yhandle is turned, the recesses therein will soon engage `projections 64. The described operations'are repeated until nthe desired .quantities have been dispensed Handle t mavthen--be readily .removed and doors 2f? renace@ [tol rendergli .the mechanism .i11-

accgssible. i. i

lt ist@ be noted nertisiilarly that w11 the .meehanismssarefthat actually desired .td-bs otherwise located, is housed below plate 22 within casings-23. Theapparatus to which frequent access is necessary is located within housing 26 and is conveniently accessible through the openings kin the latter when plates 27 are removed. The driving mechanism and other devices within casings 23 are readily and completely accessible by removing the casings which may be conveniently accomplished. The arrangement of the driving mechanism is important on account of the improved ap earance of the apparatus obtained thereiiy and also because of the fact that the point of application of the crank handle is located adjacent the top of the pump cylinder rather than at a considerable distance thereabove. The arrangement described is, therefore, of considerable ,ractical utility especially with pumps of arge ca acity.

at I claim is- 1. In a dispensing apparatus, the combination with a pump cylinder, its piston and piston rod, of an operating member for said rod and depending therefrom, mechanism to lift said member and arranged alongside the cylinder, a casing to inclose the pump and its operating mechanism, said casing having an extension to inclose the piston rod and said member in its reciprocatory movement, an actuatin crank for said mechanism and .located be W the top iso of vthe pump cylinder, a slot in said eXtension, and a part movable with the piston and Avisible from the exterior of the casing whereby the pump may be operated and a 'measure 'of thepumps operation observed without fing guide rods and stationary guiding means therefor, a chain connected to the lower end of one of the guide rods and means to move the chain to operate the piston.

3. A dispensing apparatus, comprising, a pump cylinder a piston, Aa piston rod, a cross head on the top of the latter, depending guide rods and stationary guiding means therefor, 'a chain connected to the lower end of one of the guide rods and means to move the chain to operate the piston, said piston having sufcient weight associated therewith to lower the piston, the rod, and the cross head from their upper to their lower positions.

4. A dispensing apparatus, comprising, a piston pump, across head 'connected to the piston rod withl depending guide members,

means to' lift the cross head and located below the latter, a casing to inclose and protect said' parts lduring a completecycle of their operations, a relatively small opening-in said casing, andmeans extending 'from the' 'cross head through said `opening Copies of this patent `may vbe obtained for to move with the cross head relatively to the casing, to indicate outside of the latter the piston displacement.

5'. A dispensing apparatus, comprising, a pump cylinder, a piston and piston rod therefor, -an upper header member and a lower header member, shafts and sprockets on` both header members, chains connecting suitable sprockets to form a power transmitting device, and means connecting said device with the piston rod, whereby the latter may be raised.

6. A dispensin apparatus, comprising, a pump cylinder aving upper' and lower header members, actuating means located' in part on the upper and in part on the lower header members, and a piston rod having a depending operating member connected at its lower end with said power means.

7. In a dispensing apparatus, the combination with a vertically-arranged pump with suiicient weight associated with its piston to automatically move the latter from upper to lower position, a piston rod having a dependin o erating member, a mechanism located entlre y below the top of the pump cylinder to lift said member, and an* actu'- 'ating member for said mechanismmovable to temporarily release the mechanism,

whereby the piston and its associated weight 'f may 'travel quicklyto its lower position.

JOHN B'. DAVIS.

:live cents each, by addressing the Commissioner of Patenti, Washington, D. c. i 

